Getter - ion pumps decrease chamber pressure by chemical reaction of residual gases with an evaporated metal.
吸气离子泵通过剩余气体与蒸发的金属之间的化学反应减少了内腔的压力.
辞典例句
It decreases chamber pressure by chemical reaction of residual gases with an evaporated metal.
它通过剩余气体与蒸发的金属之间的化学反应减小了内腔的压力.
辞典例句